#coding:utf-8
class Person(object):

    def __init__(self, name, gender):
        self.name = name
        self.gender = gender

class Student(Person):

    def __init__(self, name, gender, score):
        super(Student,self).__init__(name,gender)
        self.score=score
    #下面定义一个特殊方法。
    def __str__(self):
        l=[self.name,self.gender,self.score]
        return l

s = Student('Bob', 'male', 88)
print s